ASTM A 569 Hot Rolled Commercial Quality Sheets are produced from low carbon rimming, capped, or semi-killed steel, and are intended for uses involving simple bending or moderate drawing and welding. They may be bent flat on themselves in any direction at room temperature without cracking on the outside of the bent portion.
ASTM A 366 Commercial Quality Cold Rolled Commercial Quality Sheets are produced from rimming, capped, or semi-killed steel and are intended for exposed or unexposed parts involving bending, moderate drawing or forming and welding. They may be bent flat on themselves in any direction without cracking.
ASTM A 653 These sheets are produced from rimming, capped, or semi-killed steel, and are intended for uses involving simple bending or moderate forming. They may be bent flat on themselves in any direction at room temperature without cracking. The zinc coating will withstand bending without flaking when tested in accordance with ASTM A 525. The coating is applied by the continuous hot-dip process, producing a tight coat of prime spelter of the 1.25 oz. per square foot coating class.
Analysis ASTM
A 569
ASTM
A 366
ASTM
A 653
Carbon----------------.15
Max.
Manganese------------.60 Max.
Phosphorus-----------.035 Max.
Sulphur---------------.040
Max.
.